Welding tool for underframe assembly of combine harvester

Abstract

The utility model discloses a welding tool of a combine harvester chassis assembly, which comprises a base and a chassis assembly, the chassis assembly comprises two bottom transverse pipes, two connecting transverse pipes and four connecting brackets, and the base is provided with an abutting device capable of positioning the bottom transverse pipes and a bearing device for supporting the connecting transverse pipes; the abutting device comprises a plurality of first bearing blocks arranged on the base and positioning pins arranged on one sides of the first bearing blocks, positioning holes used in cooperation with the positioning pins are formed in one sides of the bottom transverse pipes, and the positioning pins are matched with the positioning holes to fix the bottom transverse pipes to the first bearing blocks; the bearing device comprises a bearing seat arranged on the base and located between the two bottom transverse pipes and a second bearing block arranged on the bearing seat, a limiting assembly is arranged on one side of the second bearing block and abuts against the connecting support, so that one end of the connecting support abuts against the connecting transverse pipes, and the other end of the connecting support abuts against the bottom transverse pipes; by the adoption of the tool, a plurality of components of the underframe assembly can be rapidly and precisely welded.

Description

Technical Field

[0001] The utility model relates to the application field of tooling and fixture technology, in particular to a welding tooling for a combine harvester chassis assembly. Background Art

[0002] The chassis assembly of a combine harvester is assembled from multiple parts, and personnel need to weld the parts together. Normally, personnel weld the parts one by one and finally assemble them. However, this welding method is inefficient and the welding quality is not very high. Therefore, it is necessary to provide a tooling fixture that can quickly weld the chassis assembly. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a welding tool for a chassis assembly of a combine harvester, by which multiple components of the chassis assembly can be quickly and precisely welded.

[0004] The technical solution of the utility model is: a welding tool for a combine harvester chassis assembly, comprising a base and a chassis assembly, wherein the chassis assembly comprises two bottom transverse tubes, two connecting transverse tubes and four connecting brackets, and the base is provided with an abutment device capable of positioning the bottom transverse tubes and a bearing device for supporting the connecting transverse tubes;

[0005] The abutment device includes a plurality of first bearing blocks arranged on the base and a positioning pin arranged on one side of the first bearing block, one side of the bottom transverse tube is provided with a positioning hole used in conjunction with the positioning pin, and the positioning pin and the positioning hole cooperate with each other to fix the bottom transverse tube to the first bearing block;

[0006] The bearing device includes a bearing seat arranged on the base and located between the two bottom cross tubes and a second bearing block arranged on the bearing seat, a limiting component is provided on one side of the second bearing block, and the limiting component abuts against the connecting bracket to abut one end of the connecting bracket against the connecting cross tube, and the other end of the connecting bracket abuts against the bottom cross tube.

[0007] Furthermore, the limiting assembly includes a limiting baffle and two support plates arranged on one side of the limiting baffle, and the limiting baffle and the support plates cooperate with each other to abut one end of the connecting bracket against the connecting cross pipe.

[0008] Furthermore, the angle between the support plate and the bearing seat is an acute angle.

[0009] Furthermore, the limiting components are provided with two groups.

[0010] Furthermore, the chassis assembly also includes a connecting arm arranged on the bottom cross tube, the connecting arm is connected to an extension block via a fastener, and the base is provided with a positioning assembly used in conjunction with the extension block.

[0011] Furthermore, the positioning assembly includes a column, and the column is provided with an opening for the extension block to pass through.

[0012] Furthermore, a fixing pipe is provided between the two connecting transverse pipes, and the bottom of the fixing pipe abuts against the connecting bracket.

[0013] Furthermore, the chassis assembly is assembled by welding.

[0014] Furthermore, a reinforcing rib is provided on one side of the connecting bracket, and the connecting bracket and the connecting cross pipe are fixed by the reinforcing rib.

[0015] Furthermore, the height of the second bearing block is greater than the height of the first bearing block.

[0016] The beneficial technical effects of the utility model are:

[0017] The two bottom cross tubes can be quickly positioned and the connecting arms can be welded to the bottom cross tubes through the abutment device and the positioning device; at the same time, the positions of the connecting cross tubes and the connecting brackets are determined through the cooperation of the bearing device and the limiting assembly, so that one end of the connecting bracket abuts against the connecting cross tube and the other end of the connecting bracket abuts against the bottom cross tube, which is convenient for personnel to weld.

[0018] By adopting the above structural solution, it is only necessary to place the various components on the above structure, and personnel can quickly weld the various components in sequence. Compared with direct manual welding, this greatly improves work efficiency and ensures welding quality.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the chassis assembly of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the welding tool of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the connection bracket and the limiting component of the utility model cooperating with each other.

[0024] The accompanying drawings are marked as follows:

[0025] 100, base; 110, abutment device; 111, first bearing block; 112, positioning pin; 120, bearing device; 121, bearing seat; 122, second bearing block; 130, limit assembly; 131, limit baffle; 132, support plate; 140, positioning assembly; 141, column; 142, opening; 200, chassis assembly; 210, bottom cross tube; 211, positioning hole; 220, connecting bracket; 230, connecting cross tube; 240, fixing tube; 250, connecting arm; 251, extension block; 252, fastener. DETAILED DESCRIPTION

[0026] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0028] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships recorded in the embodiments and shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0029] like Figure 1-4 As shown, the utility model specifically relates to a welding tool for a chassis assembly 200, comprising a base 100 and a chassis assembly 200, wherein the chassis assembly 200 comprises two bottom transverse tubes 210, two connecting transverse tubes 230 and four connecting brackets 220, and the base 100 is provided with an abutment device 110 capable of positioning the bottom transverse tubes 210 and a bearing device 120 supporting the connecting transverse tubes 230;

[0030] The abutment device 110 includes a plurality of first bearing blocks 111 disposed on the base 100 and a positioning pin 112 disposed on one side of the first bearing block 111. A positioning hole 211 used in conjunction with the positioning pin 112 is disposed on one side of the bottom transverse tube 210. The positioning pin 112 and the positioning hole 211 cooperate with each other to fix the bottom transverse tube 210 to the first bearing block 111.

[0031] The supporting device 120 includes a supporting seat 121 arranged on the base 100 and located between the two bottom cross tubes 210 and a second supporting block 122 arranged on the supporting seat 121. A limiting component 130 is provided on one side of the second supporting block 122. The limiting component 130 abuts against the connecting bracket 220 to abut one end of the connecting bracket 220 against the connecting cross tube 230, and the other end of the connecting bracket 220 abuts against the bottom cross tube 210.

[0032] It should be noted that the chassis assembly 200 is welded by multiple components, and the abutment device 110 and the bearing device 120 are fixed to the base 100 by bolts, which is convenient for quick disassembly or assembly. In addition, there are two groups of abutment devices 110, and the two groups of abutment devices 110 are arranged on opposite sides of the base 100; when it is necessary to weld the various components of the chassis assembly 200, firstly, the bottom cross tube 210 is placed on the first bearing block 111, and the bottom cross tube 210 is supported by the first bearing block 111, and at the same time, the positioning pin 112 arranged on the base 100 cooperates with the positioning hole 211 of the bottom cross tube 210, and the position of the bottom cross tube 210 is further determined by inserting the positioning pin 112 into the positioning hole 211, so as to ensure that the position of the bottom cross tube 210 does not change.

[0033] When the position of the bottom cross tube 210 is determined, one end of the connecting bracket 220 is abutted against the bottom cross tube 210, and one side of the connecting bracket 220 is limited in position by the limit assembly 130, and the connecting bracket 220 is supported so that the upper end surface of the connecting bracket 220 is in a horizontal state. At this time, the connecting cross tube 230 is placed on the second supporting block 122, and the connecting cross tube 230 is supported by the second supporting block 122. At this time, the other end of the connecting bracket 220 is abutted against the connecting cross tube 230, and the connecting cross tube 230 and the bottom cross tube 210 are connected through the connecting bracket 220, which is convenient for personnel to weld.

[0034] Since the connecting bracket 220 is a special-shaped part, the limiting assembly 130 not only limits the relative position of the connecting bracket 220, but also supports the connecting bracket to ensure that the surface where the connecting bracket 220 abuts the connecting cross tube 230 is in a horizontal state, thereby facilitating the connection between the connecting bracket 220 and the connecting cross tube 230.

[0035] In addition, the position of the connecting cross tube 230 relative to the connecting bracket 220 can be adjusted according to actual needs, so there is no restriction on the relative position of the connecting cross tube 230.

[0036] Furthermore, four connecting brackets 220 are provided, and two connecting brackets 220 are defined as a group. The two groups of connecting brackets 220 are arranged opposite to each other, and the two groups of connecting brackets 220 are arranged in an "eight" shape. The "eight" shape arrangement ensures that the connecting cross tube 230 and the bottom cross tube 210 will not fall off the connecting bracket 220 during the assembly process, thereby freeing the hands of the personnel to directly weld the assembled components.

[0037] The limiting assembly 130 includes a limiting baffle 131 and two supporting plates 132 arranged on one side of the limiting baffle 131 . The limiting baffle 131 and the supporting plates 132 cooperate with each other to abut one end of the connecting bracket 220 against the connecting cross pipe 230 .

[0038] Among them, the limit baffle 131 is arranged on the bearing seat 121, and the support plate 132 is arranged on one side of the limit baffle 131. The position of the connecting bracket 220 is limited by the limit baffle 131, and the connecting bracket 220 is supported by the support plate 132, thereby ensuring that the upper end of the connecting bracket 220 to be assembled is in a horizontal state.

[0039] The included angle between the support plate 132 and the bearing seat 121 is an acute angle. The two support plates 132 are relatively arranged on one side of the limit baffle 131, and the two support plates 132 are also arranged in an "eight" shape. In addition, the support plates 132 correspond to the connecting brackets 220 one by one.

[0040] The limiting components 130 are provided in two groups, and the two groups of limiting components 130 correspond to the two groups of connecting components.

[0041] The chassis assembly 200 further includes a connecting arm 250 disposed on the bottom cross tube 210 . The connecting arm 250 is connected to an extension block 251 via a fastener 252 . The base 100 is provided with a positioning assembly 140 used in conjunction with the extension block 251 .

[0042] The positioning assembly 140 includes a column 141 , and the column 141 is provided with an opening 142 for the extension block 251 to pass through.

[0043] Insert the extension block 251 into the opening 142 and determine the relative position of the extension block 251 through the column 141. When the fastener 252 fixes the extension block 251, the position of the fastener 252 is determined. At this time, one end of the connecting arm 250 is abutted against the fastener 252, and the other end of the connecting arm 250 is abutted against the bottom cross tube 210 to complete the welding of the connecting arm 250.

[0044] A fixing pipe 240 is disposed between the two connecting transverse pipes 230 , and a bottom of the fixing pipe abuts against the connecting bracket 220 .

[0045] The stability between the two connecting transverse pipes 230 is further ensured by the fixing pipe 240 .

[0046] The base frame assembly 200 is assembled by welding.

[0047] A reinforcing rib is further provided on one side of the connecting bracket 220 , and the connecting bracket 220 and the connecting cross pipe 230 are fixed by the reinforcing rib.

[0048] The height of the second bearing block 122 is greater than the height of the first bearing block 111 .

[0049] The above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solution of the present invention rather than to limit it. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present invention, and should all be covered within the protection scope of the present invention.

Claims

1. A welding tool for a combine harvester chassis assembly, characterized in that: The invention comprises a base (100) and a base frame assembly (200), wherein the base frame assembly (200) comprises two bottom transverse tubes (210), two connecting transverse tubes (230) and four connecting brackets (220), and the base (100) is provided with an abutment device (110) capable of positioning the bottom transverse tubes (210) and a bearing device (120) for supporting the connecting transverse tubes (230); The abutment device (110) comprises a plurality of first bearing blocks (111) arranged on the base (100) and a positioning pin (112) arranged on one side of the first bearing block (111); one side of the bottom transverse tube (210) is provided with a positioning hole (211) used in conjunction with the positioning pin (112); the positioning pin (112) and the positioning hole (211) cooperate with each other to fix the bottom transverse tube (210) to the first bearing block (111); The bearing device (120) comprises a bearing seat (121) arranged on the base (100) and located between two bottom transverse tubes (210) and a second bearing block (122) arranged on the bearing seat (121); a limiting component (130) is provided on one side of the second bearing block (122); the limiting component (130) is in contact with the connecting bracket (220) so that one end of the connecting bracket (220) is in contact with the connecting transverse tube (230), and the other end of the connecting bracket (220) is in contact with the bottom transverse tube (210).

2. The welding tool for the combine harvester chassis assembly according to claim 1, characterized in that: The limiting assembly (130) comprises a limiting baffle (131) and two supporting plates (132) arranged on one side of the limiting baffle (131); the limiting baffle (131) and the supporting plates (132) cooperate with each other to abut one end of the connecting bracket (220) against the connecting transverse tube (230).

3. The welding tool for the combine harvester chassis assembly according to claim 2, characterized in that: The angle between the support plate (132) and the bearing seat (121) is an acute angle.

4. The welding tool for the combine harvester chassis assembly according to claim 3, characterized in that: The limiting components (130) are provided in two groups.

5. The welding tool for the combine harvester chassis assembly according to claim 1, characterized in that: The base frame assembly (200) further comprises a connecting arm (250) arranged on the bottom transverse tube (210), the connecting arm (250) being connected to an extension block (251) via a fastener (252), and the base (100) is provided with a positioning assembly (140) used in conjunction with the extension block (251).

6. The welding tool for the combine harvester chassis assembly according to claim 5, characterized in that: The positioning assembly (140) comprises a column (141), and the column (141) is provided with an opening (142) for the extension block (251) to pass through.

7. The welding tool for the combine harvester chassis assembly according to claim 1, characterized in that: A fixing pipe (240) is provided between the two connecting transverse pipes (230), and the bottom of the fixing pipe abuts against the connecting bracket (220).

8. The welding tool for the combine harvester chassis assembly according to claim 1, characterized in that: The base frame assembly (200) is assembled by welding.

9. The welding tool for the combine harvester chassis assembly according to claim 1, characterized in that: A reinforcing rib is also provided on one side of the connecting bracket (220), and the connecting bracket (220) and the connecting cross pipe (230) are fixed by the reinforcing rib.

10. The welding tool for the combine harvester chassis assembly according to claim 1, characterized in that: The height of the second bearing block (122) is greater than the height of the first bearing block (111).

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